German submarine U-511
Summary of raiding history

Date
Name
Nationality
Tonnage (GRT)
Fate
27 August 1942
Esso Aruba
United States
8,773
Damaged
27 August 1942
Rotterdam
Netherlands
8,968
Sunk
27 August 1942
San Fabian
United Kingdom
13,031
Sunk
17 January 1943
William Wilberforce
United Kingdom
5,004
Sunk
27 June 1943
Sebastin Cermeno
United States
7,194
Sunk
9 July 1943
Samuel Heintzelman
United States
7,176
Sunk

Question: Which ships were sunk by U-511?
Answer: German submarine U-511 had sunk five ships totalling 41,373 gross register tons (GRT) and damaged one of 8,773 GRT.